PARIS (AP) — Zlatan Ibrahimovic scored twice as Paris Saint-Germain beat Lyon 5–1 to open up a 17-point lead at the top of the French league on Sunday, glossing over yet another blunder from goalkeeper Kevin Trapp.

Ibrahimovic, the club's all-time leading scorer, put PSG ahead in the 11th minute with a neat finish and right back Sergie Aurier made it 2–0 when he headed in Angel di Maria's cross just six minutes later.

After striker Edinson Cavani almost made it 3–0, Lyon was handed an unexpected lifeline in the 24th.

Trapp was caught straying way off his line when midfielder Jordan Ferri tried a speculative shot from 25 meters and, as he backpedalled, haplessly pushed the ball into this own net. Trapp did the same two weeks ago, when PSG beat Troyes 4–1.

Sunday's gaffe was the German goalie's fifth significant mistake he has made this season in a side that has faced hardly any pressure so far—raising doubts as to whether he is equipped to play at the top level PSG strives for in Europe.

Shortly after his mistake, PSG's fans ironically cheered the 25-year-old Trapp when he caught a routine high ball.

“He needs to concentrate better," Blanc said. “You have to be able to concentrate all the time. If that's not the case, you can't be a top-level sportsman.”

Thankfully, all is well in attack, with Cavani turning in Di Maria's cross from the left flank in the 61st minute.

Ibrahimovic then punished a foul by defender Henri Bedimo to make it 4–1 from the penalty spot in the 77th, his 12th goal in 10 games.

Di Maria rounded off with his third assist of the night, supplying the pass for substitute Lucas to run through and fire a powerful shot into the left corner in injury time.

In a further boost for coach Laurent Blanc, midfielder Marco Verratti returned from injury and replaced Adrien Rabiot for the last 20 minutes.

Although Lyon secured a morale-boosting 2–0 win away to Valencia in the Champions League in midweek, coach Hubert Fournier's side has lost four and drawn one of its past five league games, and is 22 points behind PSG in sixth spot.

Fournier gained recognition for guiding Lyon to second place last season, but president Jean-Michel Aulas appears close to replacing him.

“It would be unprofessional on my part if I wasn't thinking about it. Our current position is unacceptable,” Aulas told Canal Plus television. “The next two matches are very important.”

Angers and Monaco are 17 points behind PSG but newly-promoted Angers—which equalized late on in a 1–1 home draw with Bordeaux—leads Monaco on goal difference.

Earlier, emerging Brazil right back Fabinho’s late penalty earned Monaco a 1–0 win against Saint-Etienne, which was clinging on after defender Kevin Malcuit was sent off midway through the second half for fouling midfielder Joao Moutinho.